Science Lab Test Tube Illustration - Free Clipart for Education & Web #3260840 (License: Personal Use)

This flat-style vector illustration depicts a glass test tube with a brown outline, containing two distinct liquid layers: a light teal upper layer and a vibrant blue lower layer dotted with dark brown bubbles. The tube is sealed with a tan cork stopper and rests against a muted slate-gray background, emphasizing its use in educational or scientific visual contexts.

Commonly used on educational websites, science blogs, chemistry lesson pages, or app icons to symbolize experimentation, laboratory work, or chemical reactions; matches user intent for finding simple, royalty-free science imagery.